[python-quantumclient/f19] (4 commits) ...bump release

[Pádraig Brady]

Summary of changes:

  53006b6... update to 2.2.1 (*)
  e1d3879... add dependency on python-iso8601 and fix cliff version depe (*)
  a89313c... avoid python runtime dep checking (*)
  64a0f74... bump release (*)

(*) This commit already existed in another branch; no separate mail sent